Zobrazeno 1 - 10
of 246
pro vyhledávání: '"Petr Praus"'
Autor:
Petr Praus, Lenka Řeháčková, Jakub Čížek, Aneta Smýkalová, Martin Koštejn, Jiří Pavlovský, Miroslava Filip Edelmannová, Kamila Kočí
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-18 (2022)
Abstract Graphitic carbon nitride (C3N4) was synthesised from melamine at 550 °C for 4 h in the argon atmosphere and then was reheated for 1–3 h at 500 °C in argon. Two band gaps of 2.04 eV and 2.47 eV were observed in all the synthetized materia
Externí odkaz:
https://doaj.org/article/427e4e3e50c24f4b97f3cffffb03a9e9
Autor:
Vlastimil Matějka, Radim Škuta, Kryštof Foniok, Vlastimil Novák, Daniel Cvejn, Alexandr Martaus, Monika Michalska, Jiří Pavlovský, Petr Praus
Publikováno v:
Journal of Materials Research and Technology, Vol 18, Iss , Pp 3319-3335 (2022)
This work describes the doping of graphitic carbon nitride (g-C3N4) with phosphorus performed by 2-h heat treatment of a mechanical mixture of g-C3N4 precursor (urea, dicyandiamide, and guanidine hydrochloride) with hexachlorocyclotriphosphazene at 5
Externí odkaz:
https://doaj.org/article/9938aa204fb748b1894da366eb8a37e2
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-18 (2021)
Abstract Graphitic carbon nitride (CN) was synthesized from guanidine hydrochloride (G), melamine (M) and dicyandiamide (DCDA). The CN materials synthetized from the pure precursors and their mixtures were characterized by common methods, including t
Externí odkaz:
https://doaj.org/article/a770983fbaaa48b8b715530373d105a2
Publikováno v:
Nanoscale Research Letters, Vol 16, Iss 1, Pp 1-14 (2021)
Abstract Graphitic carbon nitride (CN) synthetized by the thermal polycondensation of melamine at 550 °C for 4 h was further exfoliated by heating at 500 °C for 3 h. Silver cations were adsorbed on the exfoliated graphitic carbon nitride (CNE) and
Externí odkaz:
https://doaj.org/article/8763cb97f3cc4d43afe3f1659b88ff3b
Autor:
Petr Praus
Publikováno v:
Scientometrics. 128:2201-2209
In this contribution, an empirical relationship between the number of review and research articles published per year was searched. The simple idea based on proportionality (linearity) between the numbers of both kinds of articles was expressed in te
Publikováno v:
Metals, Vol 12, Iss 1, p 123 (2022)
In this study, graphitic carbon nitride (g-C3N4, labelled as gCN) was tested in the formulation of copper-free (Cu-free) friction mixtures, which are potentially interesting for brake pad manufacturing. Three formulations of friction composites were
Externí odkaz:
https://doaj.org/article/c389566d0b3d449e946406b9f480143e
Autor:
Petr Praus
Publikováno v:
Applied Water Science, Vol 8, Iss 6, Pp 1-9 (2018)
Abstract The evaluation of wastewaters treated by biological wastewater treatment plant was performed using multivariate analysis. The samples taken during 1 year were characterized by the Mahalanobis distances (MDs) calculated from 11 original param
Externí odkaz:
https://doaj.org/article/23f6ddb2806d4ddd87c67c04a5b87f8d
Publikováno v:
Materials, Vol 14, Iss 8, p 1967 (2021)
Graphitic carbon nitride (g-C3N4, hereafter abbreviated as CN) was prepared by the heating of melamine (CN-M) and melamine-cyanurate complex (CN-MCA), respectively, in air at 550 °C for 4 h. The specific surface area (SSA) of CN-M and CN-MCA was 12
Externí odkaz:
https://doaj.org/article/82591cc733404b2bbe545ed2fd50d3de
Autor:
Igor Vasylchenko, Roman Grill, Marián Betušiak, Eduard Belas, Petr Praus, Pavel Moravec, Pavel Höschl
Publikováno v:
Sensors, Vol 21, Iss 8, p 2783 (2021)
The performance of the CdTe radiation detectors heavily relies on the method of contact preparation. A convenient research method addressing this problem is the laser-induced transient current technique. In this paper, we compare the performance of t
Externí odkaz:
https://doaj.org/article/0956179d60094a65ba9e63f5b13906a5
Publikováno v:
Catalysts, Vol 11, Iss 2, p 203 (2021)
Graphitic carbon nitride (g-C3N4) was synthesized from melamine and exfoliated by thermal treatment. Exfoliated g-C3N4 particles were immobilized by electrophoretic deposition from an ultrasonically treated ethanolic suspension aged up to 12 weeks. D
Externí odkaz:
https://doaj.org/article/a744c9a5020142fa8d5fd6aa0aee755e